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11. 发明专利

JP2005113258A Metal powder for powder magnetic core, and powder magnetic core using it 审中-公开
标题翻译：用于粉末磁芯的金属粉末和使用它的粉末磁芯
公开(公告)号：JP2005113258A
公开(公告)日：2005-04-28
申请号：JP2003429023
申请日：2003-12-25
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： UEDA MASATERU , NAKAMURA NAOMICHI , MAETANI TOSHIO , UENOSONO SATOSHI
IPC分类号： B22F1/02 , B22F3/00 , B22F3/24 , H01F1/24 , H01F27/255
摘要： PROBLEM TO BE SOLVED: To provide a metal powder for a powder magnetic core which has a high magnetic flux density together with a high insulation characteristic and is useful for an iron core for a motor. SOLUTION: Phosphate or a phosphoric acid compound containing aluminum is used as the coating material, in coated metal powder formed by coating the surface of the ferromagnetic metal powder with the coating material. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供具有高磁通密度和高绝缘特性的粉末磁芯的金属粉末，并且可用于电动机的铁芯。解决方案：使用磷酸盐或含有铝的磷酸化合物作为涂层材料，通过用涂覆材料涂覆强磁性金属粉末的表面而形成的涂覆金属粉末中。版权所有（C）2005，JPO＆NCIPI

12. 发明专利

JP2003342744A Method for coating powder 有权
标题翻译：涂粉粉的方法
公开(公告)号：JP2003342744A
公开(公告)日：2003-12-03
申请号：JP2003075202
申请日：2003-03-19
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： MAETANI TOSHIO , NAKAMURA NAOMICHI , UEDA MASATERU , SAITO SHINGO
IPC分类号： B05D7/00 , B01J2/00 , B05D7/24 , C23C22/20 , C23C22/73
摘要： PROBLEM TO BE SOLVED: To provide a method for forming a uniform coating layer on the whole surface of a powder by a simple means when forming the coating layer on the surface of the powder.
SOLUTION: The powder is held in a vessel, and agitation blades provided to the bottom of the vessel are rotated at ≥1.5 m/sec rotating speed at the end part. Gas for fluidization is injected from above the powder and blown into the powder at ≥3.0 m/sec flow velocity to agitate and fluidize the powder, and a coating solution is sprayed from above the powder and dried to form the coating layer.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种在粉末表面上形成涂层时通过简单的方法在粉末的整个表面上形成均匀的涂层的方法。
解决方案：将粉末保持在容器中，并且设置在容器底部的搅拌叶片在端部处以≥1.5m/ sec的转速旋转。用于流化的气体从粉末上方注入并以≥3.0m/ sec流速吹入粉末中以搅拌和流化粉末，并从粉末上方喷涂涂层溶液并干燥以形成涂层。版权所有（C）2004，JPO

13. 发明专利

JP2005187918A Insulating coated iron powder for powder compact magnetic core 审中-公开
标题翻译：用于粉末复合磁芯的绝缘涂层粉末
公开(公告)号：JP2005187918A
公开(公告)日：2005-07-14
申请号：JP2003433481
申请日：2003-12-26
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： NAKAMURA NAOMICHI , UENOSONO SATOSHI , MAETANI TOSHIO , UEDA MASATERU
IPC分类号： B22F1/02 , H01F1/24 , H01F1/33
摘要： PROBLEM TO BE SOLVED: To obtain coated iron powder for a powder compact magnetic core with which a powder compact magnetic core having low iron loss and high magnetic flux density can be obtained by increasing its compressive density.
SOLUTION: The insulating-coated iron powder for a powder compact magnetic core is obtained by forming an insulating layer on the surface of iron powder particles in which hardness is ≤75 by micro Vickers hardness Hv.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了获得具有低铁损和高磁通密度的粉末致密磁芯的粉末致密磁芯的涂层铁粉，可以通过增加其压缩密度来获得。解决方案：通过在硬度≤75的铁粉末颗粒的表面上通过微维氏硬度Hv形成绝缘层，获得粉末致密磁芯的绝缘包覆铁粉。版权所有（C）2005，JPO＆NCIPI

14. 发明专利

JP2005187908A Iron based powdery mixture for powder metallurgy 有权
标题翻译：用于粉末冶金的基于铁的粉末混合物
公开(公告)号：JP2005187908A
公开(公告)日：2005-07-14
申请号：JP2003432767
申请日：2003-12-26
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： UENOSONO SATOSHI , NAKAMURA NAOMICHI
IPC分类号： B22F1/00 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To obtain a high density compact having a density of ≥7.35 Mg/m
3 without heating an iron based powdery mixture, and only by controlling surface temperature to about ≤80°C regarding a die.
SOLUTION: In the iron based powdery mixture obtained by adding graphite powder and a lubricant to iron powder, as the iron powder, the one in which the hardness at the central part is ≤75 by micro Vickers hardness Hv is used.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：待解决的问题：为了在不加热铁基粉末混合物的情况下获得密度≥7.35Mg/ m 3的高密度压块，并且仅通过将表面温度控制在约≤80° 关于一个死亡。解决方案：在铁粉中添加石墨粉末和润滑剂得到的铁基粉末混合物中，作为铁粉，使用微维氏硬度Hv使中心硬度≤75的那种。版权所有（C）2005，JPO＆NCIPI

15. 发明专利

JP2004296606A Magnetic core of low coercive force, manufacturing method therefor and iron powder for magnetic core 审中-公开
公开(公告)号：JP2004296606A
公开(公告)日：2004-10-21
申请号：JP2003084591
申请日：2003-03-26
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： FUJINAGA MASASHI , NAKAMURA NAOMICHI
IPC分类号： B22F1/00 , H01F1/22 , H01F3/08 , H01F27/255
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive magnetic core of low coercive force, a manufacturing method of the core and iron powder for magnetic core.
SOLUTION: Not less than 90 vol. % of whole quantity of iron powders forming the magnetic core have particle sizes of not more than 75μm. Density of the magnetic core is set to be not more than 6g/cm
3 .
COPYRIGHT: (C)2005,JPO&NCIPI

16. 发明专利

JP2004095935A Split iron core 审中-公开
公开(公告)号：JP2004095935A
公开(公告)日：2004-03-25
申请号：JP2002256526
申请日：2002-09-02
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： NAKAMURA NAOMICHI , UEDA MASATERU , MAETANI TOSHIO
IPC分类号： H01F27/255
摘要： PROBLEM TO BE SOLVED: To provide a split iron core as an iron core for a reactor with a high saturation magnetic flux density and less heat generation.
SOLUTION: The split iron core is characterized in that a plurality of pressed iron powder forming bodies 1, 2 are coupled via gaps 4 wherein the number of gaps is selected as an integer part or over of a value decided by expression of 30/logρ, in which ρ is a specific resistance in μΩm of the pressed iron powder forming bodies.
COPYRIGHT: (C)2004,JPO

17. 发明专利

JP2003247003A STEEL ALLOY POWDER FOR POWDER METALLURGY 审中-公开
公开(公告)号：JP2003247003A
公开(公告)日：2003-09-05
申请号：JP2002043912
申请日：2002-02-20
申请人： JFE STEEL KK
发明人： NAKAMURA NAOMICHI , UNAMI SHIGERU , UENOSONO SATOSHI
IPC分类号： B22F1/02 , C22C38/00 , C22C38/12
摘要： PROBLEM TO BE SOLVED: To provide steel alloy powder for powder metallurgy in which high compressibility and high sinterability are reconciled to increase the molded density of a molding, and to reduce opening holes as well. SOLUTION: Into the surfaces of particles of iron based powder having a composition containing, by mass, ≤1.0% Mn and 0.2 to 1.5% Mo so as to be prealloyed, and the balance Fe with inevitable impurities, 0.2 to 10.0% Mo is incorporated in the form of diffused and stuck powder. COPYRIGHT: (C)2003,JPO

18. 发明专利

JP2003244873A STATOR CORE FOR MOTOR OF SUPERIOR NOISE CHARACTERISTICS 审中-公开
公开(公告)号：JP2003244873A
公开(公告)日：2003-08-29
申请号：JP2002040167
申请日：2002-02-18
申请人： JFE STEEL KK
发明人： HONDA ATSUTO , SENDA KUNIHIRO , NAKAMURA NAOMICHI
IPC分类号： H02K1/18 , H02K1/02 , H02K19/10 , H02K37/04
摘要： PROBLEM TO BE SOLVED: To provide a stator core and a material thereof contributing to generation of low noise, in a reluctance motor particularly in a switched reluctance motor. SOLUTION: A stator core of a motor is formed with a teeth part and a core back part into a separate unit, to make the teeth part demountable with respect to this core back part. The stator core for the motor is preferable, to make the teeth part consist of a magnetic iron powder molded unit and the core back part consist of an ingot flat rolled magnetic steel sheet. The ingot magnetic steel sheet is preferable to have the characteristic of Si≥0.01 mass%, plate thickness≤1.0 mm, and Hv≥105. The stator core is preferably used for the motor utilizing reluctance torque. COPYRIGHT: (C)2003,JPO

19. 发明专利

JP2005232535A Iron powder for powder magnetic core, and powder magnetic core 审中-公开
标题翻译：用于粉末磁芯和粉末磁芯的铁粉（Feon POWDER FOR POWDER MAGNETIC CORE）和粉末磁芯
公开(公告)号：JP2005232535A
公开(公告)日：2005-09-02
申请号：JP2004042888
申请日：2004-02-19
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： MAETANI TOSHIO , UEDA MASATERU , NAKAMURA NAOMICHI , OZAKI YUKIKO
IPC分类号： B22F1/02 , H01F27/255
摘要： PROBLEM TO BE SOLVED: To provide iron powder for a powder magnetic core, which is used in manufacturing the powder magnetic core having not only high magnetic flux density and high insulation properties but also high strength.
SOLUTION: This iron powder for the powder magnetic core has a phosphate containing aluminum or a phosphate compound, coated on the surface; and has a particle size distribution, by sieved mass% using a sieve set defined in JIS Z 8801-1, adjusted to contain 40% or less powders with such particle sizes as not to pass through a sieve with a nominal size of 180 μm but as to pass through a sieve with the nominal size of 1 mm, 15% to 60% powders with such particle sizes as not to pass through a sieve with the nominal size of 150 μm but as to pass through a sieve with the nominal size of 180 μm, 10% to 60% powders with such particle sizes as not to pass through a sieve with the nominal size of 106 μm but as to pass through a sieve with the nominal size of 150 μm, 3% to 20% powders with such particle sizes as not to pass through a sieve with the nominal size of 75 μm but as to pass through a sieve with the nominal size of 106 μm, and 15% or less powders with such particle sizes as to pass through a sieve with the nominal size of 75 μm.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供用于制造不仅具有高磁通密度和高绝缘性而且高强度的粉末磁芯的粉末磁芯的铁粉。
解决方案：该粉末磁芯的铁粉具有涂覆在表面上的含有铝或磷酸盐化合物的磷酸盐; 并且通过筛分质量％使用JIS Z 8801-1中定义的筛网筛选出的粒度分布，调整为含有40％以下的粉末，其粒径不得超过标称尺寸为180μm的筛子，但是通过标称尺寸为1mm的筛子，15％至60％的粉末，其粒径不得超过标称尺寸为150μm的筛子，但是要通过具有标称尺寸的筛子 180μm，10％至60％的粉末，其粒径不得超过标称尺寸为106μm的筛子，但为了通过标称尺寸为150μm的筛，具有这样的粉末的3％至20％的粉末颗粒尺寸不得通过标称尺寸为75μm的筛子，但是要通过标称尺寸为106μm的筛子，并且具有15％或更少的具有这种颗粒尺寸的粉末的粉末通过具有标称尺寸的筛子尺寸为75μm。版权所有（C）2005，JPO＆NCIPI

20. 发明专利

JP2005136358A Magnetic core and soft magnetic iron-based powder 审中-公开
标题翻译：磁芯和软磁铁粉
公开(公告)号：JP2005136358A
公开(公告)日：2005-05-26
申请号：JP2003373695
申请日：2003-10-31
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： NAKAMURA NAOMICHI , MAETANI TOSHIO , UEDA MASATERU
IPC分类号： B22F1/02 , C22C38/00 , H01F1/33
摘要： PROBLEM TO BE SOLVED: To provide a sintered magnetic core with a high specific resistance that can also be applied to a high frequency area, and a soft magnetic iron-based powder that is available as a raw material powder of the magnetic core.
SOLUTION: By manufacturing the sintered magnetic core using the soft magnetic iron-based powder of which a cover layer includes an Mn-Zn spinel ferrite phase and contains Si and Ca, a compound oxide of a low fusing point containing Si and Ca is eccentrically formed on an insulation layer formed to separately cover soft magnetic iron particles, thereby holding high specific resistance even after sintering.
COPYRIGHT: (C)2005,JPO&NCIPI

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